ms-tester/internal/contests/repository/task.go

package repository

import (
	"context"
	"git.sch9.ru/new_gate/models"
	"github.com/jmoiron/sqlx"
	"go.uber.org/zap"
)

type TaskStorage struct {
	db     *sqlx.DB
	logger *zap.Logger
}

func NewTaskStorage(db *sqlx.DB, logger *zap.Logger) *TaskStorage {
	return &TaskStorage{
		db:     db,
		logger: logger,
	}
}

func (storage *TaskStorage) CreateTask(ctx context.Context, task *models.Task) (int32, error) {
	query := storage.db.Rebind(`
INSERT INTO tasks
    (contest_id,problem_id,position,position_name)
VALUES (?, ?, ?, ?)
RETURNING id
`)

	rows, err := storage.db.QueryxContext(
		ctx,
		query,
		task.ContestId,
		task.ProblemId,
		task.Position,
		task.PositionName,
	)
	if err != nil {
		return 0, handlePgErr(err)
	}

	defer rows.Close()
	var id int32
	err = rows.StructScan(&id)
	if err != nil {
		return 0, handlePgErr(err)
	}

	return id, nil

}

func (storage *TaskStorage) ReadTaskById(ctx context.Context, id int32) (*models.Task, error) {
	var task models.Task
	query := storage.db.Rebind("SELECT * from tasks WHERE id=? LIMIT 1")
	err := storage.db.GetContext(ctx, &task, query, id)
	if err != nil {
		return nil, handlePgErr(err)
	}
	return &task, nil
}

func (storage *TaskStorage) UpdateTask(ctx context.Context, id int32, task models.Task) error {
	query := storage.db.Rebind("UPDATE tasks SET position=?,position_name=?")
	_, err := storage.db.ExecContext(ctx, query, task.Position, task.PositionName)
	if err != nil {
		return handlePgErr(err)
	}
	return nil
}

func (storage *TaskStorage) DeleteTask(ctx context.Context, id int32) error {
	query := storage.db.Rebind("DELETE FROM tasks WHERE id=?")
	_, err := storage.db.ExecContext(ctx, query, id)
	if err != nil {
		return handlePgErr(err)
	}

	return nil
}